William john



No. 352,772.v

(No Model.)

W. J. `nloRRoW`` ARTIGLBOP ARTIFICIAL STONE, aw.

minimum -P antentad Nov. 16, 1886.

5E.. vL

UNITED STATES PATENT OEEICE.

WILLIAM JOHN MORROW, OF GAINESVILLE, ASSIGNOR OF ONE-HALF TO IRA MOWERY, OF JACKSONVILLE, FLORIDA.`

SPECIFICATION forming part of Letters Patent No. 352,772, dated November 16, 1886. Application led May 11, 1886. Serial No. 201,828.y (No model.)

The object of this invention is to prdvidel an improvement in the construction of drainage or sewer pipe, pipe-chimneys, ornamental chimney-tops, or other hollow articles made of articial stone, cement, terra-cotta, yor similar material; and itA consists in the matters.

hereinafter described, and pointed out in the appended claim.

An article constructed in accordance with my invention is provided with one or more strengthening rings or bars of metal located within and nclosed by the walls or body of u the article, said bands serving to give addit Figure l is a sectional perspective view of a chimney-top of artificial stone or cement,`

showing metal strengthening-rings in place within the Walls of the article. Fig. 2 is a longitudinal sectional view of a drain-pipe containing rings inserted as proposed by me. Fig. 3 is a cross-section of the drain-pipe shown in Fig. 2, taken upon line x a: of said figure. f c

As shown in the said drawings, A indicates the body of the article, made of artiicial stone, cement, or oth er similar materialg, and B Bindicate metal rings or bands inserted in the body of the article in such manner as to be entirely covered or inclosed within the walls of the latter, said rings being circular in the case of a cylindric article'or one circular in crosssectional shape, but of other form when re-l quired by the shapel of the article to which they are applied.

In'making articles of the character mentioned the rings such as are shown may be inserted therein in any manner found convenient or desirable. A method of inserting'them in the process of molding the article successfully practiced by me consists in flrst filling the bottom` of the mold up to a point at which it is desired to insert a ring, then placing aring upon the top of the`material within the mold and filling around and above the ring until the mold has 'been lled to apoint at which it is desired to insert another ring, a second ring being then placed in position and the material packed around and above it, and the same steps repeateduntil the desired number of rings have been inserted and the mold is full.v The article, when taken from the mold, is dried 'or otherwise finished in `the same manner as with articles as commonly constructed. f

my invention the strengthening rings or bars may be roughened, perforated, corrugated,

` It is entirely obvious that in carrying out i tofore to employ in fire-bricks a number of In testimony that I claim the foregoing as myinvention I affix my signature in presence 1o of two Witnesses.

WILLIAM JOHN MORROW.

Vitnesses:

CHARLES O. HAMPTON, B. F. HAMPTON. 

